linuxdebug/sound/firewire/fireface/ff-proc.c

63 lines
1.3 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* ff-proc.c - a part of driver for RME Fireface series
*
* Copyright (c) 2015-2017 Takashi Sakamoto
*/
#include "./ff.h"
const char *snd_ff_proc_get_clk_label(enum snd_ff_clock_src src)
{
static const char *const labels[] = {
"Internal",
"S/PDIF",
"ADAT1",
"ADAT2",
"Word",
"LTC",
};
if (src >= ARRAY_SIZE(labels))
return NULL;
return labels[src];
}
static void proc_dump_status(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct snd_ff *ff = entry->private_data;
ff->spec->protocol->dump_status(ff, buffer);
}
static void add_node(struct snd_ff *ff, struct snd_info_entry *root,
const char *name,
void (*op)(struct snd_info_entry *e,
struct snd_info_buffer *b))
{
struct snd_info_entry *entry;
entry = snd_info_create_card_entry(ff->card, name, root);
if (entry)
snd_info_set_text_ops(entry, ff, op);
}
void snd_ff_proc_init(struct snd_ff *ff)
{
struct snd_info_entry *root;
/*
* All nodes are automatically removed at snd_card_disconnect(),
* by following to link list.
*/
root = snd_info_create_card_entry(ff->card, "firewire",
ff->card->proc_root);
if (root == NULL)
return;
root->mode = S_IFDIR | 0555;
add_node(ff, root, "status", proc_dump_status);
}